Tomas Glozar 13d2618b48 bpf: sockmap: Remove preempt_disable in sock_map_sk_acquire ... Disabling preemption in sock_map_sk_acquire conflicts with GFP_ATOMIC allocation later in sk_psock_init_link on PREEMPT_RT kernels, since GFP_ATOMIC might sleep on RT (see bpf: Make BPF and PREEMPT_RT co-exist patchset notes for details). This causes calling bpf_map_update_elem on BPF_MAP_TYPE_SOCKMAP maps to BUG (sleeping function called from invalid context) on RT kernels. preempt_disable was introduced together with lock_sk and rcu_read_lock in commit 99ba2b5aba ("bpf: sockhash, disallow bpf_tcp_close and update in parallel"), probably to match disabled migration of BPF programs, and is no longer necessary. Remove preempt_disable to fix BUG in sock_map_update_common on RT. Signed-off-by: Tomas Glozar <tglozar@redhat.com> Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com> Link: https://lore.kernel.org/all/20200224140131.461979697@linutronix.de/ Fixes: 99ba2b5aba ("bpf: sockhash, disallow bpf_tcp_close and update in parallel") Reviewed-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/r/20230728064411.305576-1-tglozar@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>		2023-08-01 09:24:34 +02:00
..
bpf_sk_storage.c	bpf: Teach verifier that certain helpers accept NULL pointer.	2023-04-04 16:57:16 -07:00
datagram.c	net: datagram: fix data-races in datagram_poll()	2023-05-10 19:06:49 -07:00
dev_addr_lists_test.c	kunit: Use KUNIT_EXPECT_MEMEQ macro	2022-10-27 02:40:14 -06:00
dev_addr_lists.c	net: extract a few internals from netdevice.h	2022-04-07 20:32:09 -07:00
dev_ioctl.c	net: dsa: replace NETDEV_PRE_CHANGE_HWTSTAMP notifier with a stub	2023-04-09 15:35:49 +01:00
dev.c	net: fix net device address assign type	2023-06-22 19:55:12 -07:00
dev.h	net-sysctl: factor-out rpm mask manipulation helpers	2023-02-09 17:45:55 -08:00
drop_monitor.c	net: extend drop reasons for multiple subsystems	2023-04-20 20:20:49 -07:00
dst_cache.c	wireguard: device: reset peer src endpoint when netns exits	2021-11-29 19:50:45 -08:00
dst.c	net: dst: fix missing initialization of rt_uncached	2023-04-21 20:26:56 -07:00
failover.c	net: failover: use IFF_NO_ADDRCONF flag to prevent ipv6 addrconf	2022-12-12 15:18:25 -08:00
fib_notifier.c
fib_rules.c	fib: expand fib_rule_policy	2021-12-16 07:18:35 -08:00
filter.c	bpf: Fix bpf socket lookup from tc/xdp to respect socket VRF bindings	2023-06-21 23:48:41 +02:00
flow_dissector.c	net: flow_dissector: add support for cfm packets	2023-06-12 17:01:45 -07:00
flow_offload.c	net: flow_offload: add support for ARP frame matching	2022-11-14 11:24:16 +00:00
gen_estimator.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
gen_stats.c	net: Remove the obsolte u64_stats_fetch_*_irq() users (net).	2022-10-28 20:13:54 -07:00
gro_cells.c	net: drop the weight argument from netif_napi_add	2022-09-28 18:57:14 -07:00
gro.c	gro: move the tc_ext comparison to a helper	2023-06-18 18:08:35 +01:00
gso.c	net: move gso declarations and functions to their own files	2023-06-10 00:11:41 -07:00
hwbm.c
link_watch.c	net: linkwatch: only report IF_OPER_LOWERLAYERDOWN if iflink is actually down	2022-11-16 09:45:00 +00:00
lwt_bpf.c	bpf, lwt: Fix crash when using bpf_skb_set_tunnel_key() from bpf_xmit lwt hook	2022-04-22 17:45:25 +02:00
lwtunnel.c	xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available	2022-10-12 10:45:51 +02:00
Makefile	net: move gso declarations and functions to their own files	2023-06-10 00:11:41 -07:00
neighbour.c	neighbour: switch to standard rcu, instead of rcu_bh	2023-03-21 21:32:18 -07:00
net_namespace.c	lib/ref_tracker: improve printing stats	2023-06-05 15:28:42 -07:00
net-procfs.c	net-sysfs: display two backlog queue len separately	2023-03-22 12:03:52 +01:00
net-sysfs.c	net: make default_rps_mask a per netns attribute	2023-02-20 11:22:54 +00:00
net-sysfs.h
net-traces.c	udp6: add a missing call into udp_fail_queue_rcv_skb tracepoint	2023-07-07 09:16:52 +01:00
netclassid_cgroup.c	core: Variable type completion	2022-08-31 09:40:34 +01:00
netdev-genl-gen.c	net: ynl: prefix uAPI header include with uapi/	2023-05-26 10:30:14 +01:00
netdev-genl-gen.h	net: ynl: prefix uAPI header include with uapi/	2023-05-26 10:30:14 +01:00
netdev-genl.c	netdev-genl: create a simple family for netdev stuff	2023-02-02 20:48:23 -08:00
netevent.c	net: core: Correct function name netevent_unregister_notifier() in the kerneldoc	2021-03-28 17:56:56 -07:00
netpoll.c	netpoll: allocate netdev tracker right away	2023-06-15 08:21:11 +01:00
netprio_cgroup.c	bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode	2021-09-13 16:35:58 -07:00
of_net.c	of: net: export of_get_mac_address_nvmem()	2022-11-29 10:45:53 +01:00
page_pool.c	page_pool: fix inconsistency for page_pool_ring_[un]lock()	2023-05-23 20:25:13 -07:00
pktgen.c	net: introduce and use skb_frag_fill_page_desc()	2023-05-13 19:47:56 +01:00
ptp_classifier.c	ptp: Add generic PTP is_sync() function	2022-03-07 11:31:34 +00:00
request_sock.c
rtnetlink.c	rtnetlink: let rtnl_bridge_setlink checks IFLA_BRIDGE_MODE length	2023-07-27 17:14:01 -07:00
scm.c	net: Ensure ->msg_control_user is used for user buffers	2023-04-14 11:09:27 +01:00
secure_seq.c	tcp: Fix data-races around sysctl knobs related to SYN option.	2022-07-20 10:14:49 +01:00
selftests.c	net: core: constify mac addrs in selftests	2021-10-24 13:59:44 +01:00
skbuff.c	net: prevent skb corruption on frag list segmentation	2023-07-08 10:03:26 +01:00
skmsg.c	bpf, sockmap: Avoid potential NULL dereference in sk_psock_verdict_data_ready()	2023-06-01 14:44:53 +02:00
sock_destructor.h	skb_expand_head() adjust skb->truesize incorrectly	2021-10-22 12:35:51 -07:00
sock_diag.c	net: fix __sock_gen_cookie()	2022-11-21 20:36:30 -08:00
sock_map.c	bpf: sockmap: Remove preempt_disable in sock_map_sk_acquire	2023-08-01 09:24:34 +02:00
sock_reuseport.c	soreuseport: Fix socket selection for SO_INCOMING_CPU.	2022-10-25 11:35:16 +02:00
sock.c	net: annotate data-races around sk->sk_priority	2023-07-29 18:13:41 +01:00
stream.c	net: deal with most data-races in sk_wait_event()	2023-05-10 10:03:32 +01:00
sysctl_net_core.c	net/sysctl: Rename kvfree_rcu() to kvfree_rcu_mightsleep()	2023-04-05 13:48:04 +00:00
timestamping.c
tso.c	net: tso: inline tso_count_descs()	2022-12-12 15:04:39 -08:00
utils.c	net: core: inet[46]_pton strlen len types	2022-11-01 21:14:39 -07:00
xdp.c	xdp: use trusted arguments in XDP hints kfuncs	2023-07-11 20:04:50 -07:00